Apparatus for controlling and driving nails.



Patented Nov. 26, IBM. J. HYSLOP. APPARATUS FOR GQNETHQLLING AND DRIVING NAILS.

(Application filed Aug; 24, 1898. Rexiewed Feb. 12, 1900.)

(No Model.)

UNITE' STATES JOHN HYSLOP, OF ABINGTON, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE UNITED SHOE MACHINERY COMPANY, A COR- PORATION OF NEW JERSEY.

APPARATUS FOR CONTROLLING AND DRIVING NAILS.

SPECIFICATION forming part of Letters Patent No. 687,686, dated November 26, 19011.

Application filed August 24, 1898. Renewed February 12, 1900. Serial No. 5,011. (No model.)

1'0 all whom it may concern:

Be it known that I, JOHN IIYSLOP, of Abington, county of Plymouth, State of Massachusetts, have invented an Improvement in Apparatus for Controlling and Driving Nails, of which the following description, in conneotion with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

The invention to be herein described and claimed is applicable to an apparatus for driving nails or to an apparatus of the kind shown and described in my application, Serial No. 8,857, filed March 15, 1900, wherein a raceway is employed to guide and direct nails, said raceway having cooperating with it a transferrer to take the nails singly therefrom and put them under a driver, my present invention relating more especially to an improved knock-off device to knock off from the raceway any cross-lodged nails and to actuate the transferrer by devices constructed to yield, substantially as described, whereby should the transferrer meet a nail that it could not force through the throat of the lifter said transferrer will not be broken.

Figure 1, in side elevation,shows a sufficient portion of a machine for shaping the heads of nails with my present improvements added to enable my invention to be understood. Fig. 2 is a partial section to the left of the dotted line 00 00, Fig. 1. Fig. 3 is an enlarged detail showing parts of the devices for actuating the transferrer, and Fig. 4: shows the upper end of the lever 61 with its pivoted guide.

The column A, head A, main shaft A camgroove B, race N, hopper L to supply it with nails, the transferrer a, and lifter h are and may be all as indicated by like letters in said application. The race has a cap or cover I) located just above it to overlap the heads of the nails in the race, said cap being heldin place by suitable bolts or screws 12.

In practice it is supposed that theshanks of many of the headed nails drop properly into the groove of the raceway and that the nails which fall crosswise on the race slide off the race at the beveled parts b but it sometimes happens that a nail becomes lodged crosswise of the race between the heads of adjacent nails, and in such case such nail has to be dislodged or else the proper feeding of the nails is interrupted. To discharge such nails, I have erected at one side the race a standard 0, on which I have pivoted a knockoff device 0, it being shown as a lever pivoted at 0 said knock-off device being moved, as herein shown, by a projection 0 extending from a collar 0, fixed by a screw 0 to a rod 0, an opposite movement being imparted to said knock-od by a spring 0 This knockoff device is moved to and fro or vibrated, and it meets any nail lodged crosswise or the head of a nail held up by said cross-lodged nail and removes such nail, thus permitting the nails to follow properly on the top of the race, the heads entering freely the space between the top of the race and the cap I). The rod 0 derives its movement to cause the projection c to actuate the knock-of by or through a lever d, pivoted at d on the head, said lever having at its lower end a roller or other stud (1 which enters a cam-groove O. The rod 0 is jointed at d to the upper end of the transferrer, pivoted at d This transferrer in the application referred to was moved positively forward by a rigid or unyielding action, and whenever the end of the transferrer met a lodged nail in the lifter said transferrer, a rather thin bar or blade, was liable to be bent or broken. To overcome this difficulty, I have provided the rod 0 with a collar 6, Fig. 3, and next said collar I have surrounded said rod with a sleeve 6, having ears c*, Fig. 4, mounted in holes in the upper end of the lever d, forked for such purpose, as shown in Fig. 4, and beyond said sleeve I have provided said rod with a spiral spring 6 and then I have applied to said rod a suitable nut or nuts 6*. When the lever is actuated to turn the transferrer in the direction to put a nail through the slot of the lifter, the power of the lever is applied to the spring a and it acts through the nut c to draw the rod, and should the transferrer be obstructed said spring will yield and the transferrer willstop in its movements and will not be broken.

tuating parts to be readily accessible.

l he spring and lever constitute a yielding actuator for the transferrer.

In this presentinstance of my invention the transferrer is connected to or forms part of a lever ot the first order pivoted upon the upper side of the head or framework of the machine, and the rod for moving said lever is adapted to be moved longitudinally in a right line and is easily accessible in case of any adjustment or repairsas, for instance, adjustment of the spring or of the device for operating the knock-otf lever.

It will be noticed that the cam-shaft-is located below the raceway and that it has a cam for moving a lever, one arm of said lever being connected with the upwardly-extended arm of the transferrer by the rod surrounded by the spring. Such location of the parts referred to makes a more compact arrangement of the machine and enablesthe ac- Having described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a machine of the class described, a raceway, a transterrer made as a lever of the first order, the long arm of the lever being upwardly extended, a shaft located below the raceway and having a cam, and a lever actuated by said cam; combined with a rod connecting said transferrer and lever above the raceway, said rod having a spring and a collar, whereby said transferrer is actuated in its effective stroke in a yielding manner through the said spring which at such times is compressed by said lever.

2. The combination with a raceway, of a knock-off lever, a spring to move it in one direction, a slide-rod having a' projection to meet said knock-oft lever and move it in 40 the opposite direction, and a lever to move said slide-rod, substantially as described.

3. In a machine of the class described, a rod having a fixed shoulder or collar 6, a spring surrounding said rod, means to retain one end of said spring in a fixed relation on said rod, a movable transferrer consisting of a lover of the first order, and operative by said rod, combined with a lever to move said rod, said lever carrying at its upper end a sleeve embracing said rod between the fixed collar and the end of the spring, substantially as described.

4. In a machine of the class described, a rod, a lever to move said rod, a spring on said rod, a sleeve carried by said lever, and acting on one end of said spring, a transferrer jointed to said rod, a race, and a knock-off lever, combined with a projection carried by said rod and adapted to actuate said knock- 6o oit lever, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN IIYSLOP.

Witnesses:

EDWIN D. ROBINS, FRANK II. GATES. 

